{"product_id":"natural-pink-sapphire-round-4-5mm-0-37cts-unheated-loose-gemstone-for-custom-ring-or-pendant","title":"Natural Pink Sapphire Round 4.5mm 0.37cts – Unheated Loose Gemstone for Custom Ring or Pendant","description":"\u003cp\u003eThis 0.37 carat pink sapphire measures 4.5 mm and is cut as a round. This one is unheated — uncommon for sapphire, and the reason untreated material carries a premium. Sapphire is corundum, 9 on the Mohs scale and second only to diamond for hardness — which is why it holds up to daily wear better than almost any coloured stone. A practical size for a solitaire, or set in a group where a run of matched pinks is wanted.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\"Small stone, serious mineral.\"\u003c\/em\u003e\u003c\/p\u003e","brand":"NNJ Designs","offers":[{"title":"Default Title","offer_id":46483804029126,"sku":"19804","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0052\/0601\/6071\/files\/4dae0189-c6c7-4cee-af60-7a1844634ee8.jpg?v=1785155691","url":"https:\/\/nnjdesigns.com\/products\/natural-pink-sapphire-round-4-5mm-0-37cts-unheated-loose-gemstone-for-custom-ring-or-pendant","provider":"NNJ Designs","version":"1.0","type":"link"}